Yeah gatherNodes just supports one key traversals. Joel Bernstein http://joelsolr.blogspot.com/
On Fri, May 5, 2017 at 10:54 AM, Zheng Lin Edwin Yeo <edwinye...@gmail.com> wrote: > Hi Joel, > > I may have several fields which requires to pass, so not sure if this will > works? > Eg: I may have field1a, field1b, field1c from collection1 which requires to > be pass to field2a, field2b and field2c from collection2 respectively. > > And yes, my /export is working now. > > Regards, > Edwin > > > On 5 May 2017 at 20:24, Joel Bernstein <joels...@gmail.com> wrote: > > > But /export has to be working to support the gatherNodes() expression. > > > > Joel Bernstein > > http://joelsolr.blogspot.com/ > > > > On Fri, May 5, 2017 at 7:40 AM, Joel Bernstein <joels...@gmail.com> > wrote: > > > > > This may work for you: > > > https://cwiki.apache.org/confluence/display/solr/Graph+Traversal > > > > > > Joel Bernstein > > > http://joelsolr.blogspot.com/ > > > > > > On Fri, May 5, 2017 at 5:39 AM, Zheng Lin Edwin Yeo < > > edwinye...@gmail.com> > > > wrote: > > > > > >> Hi, > > >> > > >> I'm using Solr 6.4.2. > > >> > > >> Is it possible to do a query based on output from another collection > in > > >> Solr Streaming, so that the entire query can be passed at one go? > > >> > > >> For example, I have a field called reference_s in collection1. In > > >> collection2, I will need to pass what is in the reference_s from > > >> collection1 into the search in collection2. > > >> > > >> Currently, I will need to do a normal query to collection1, to > retrieve > > >> all > > >> the required values in reference_s, and put them into this join query, > > >> which is a two step process. This is probably not so effective and > also > > >> slow down the search. > > >> > > >> > > >> hashJoin(parallel(collection2, > > >> workers=3, > > >> sort="id asc", > > >> innerJoin(search(collection1, q="*:*", > > >> fl="id,reference_s", > > >> sort="id asc", qt="/export", > > >> partitionKeys="id"), > > >> search(collection2, > > >> q="reference_s:?", fl="id, > > >> year_i,reference_s", sort="id asc", qt="/export", > > >> partitionKeys="id"), > > >> on="id")), > > >> hashed=search(collection3, > > >> q="day_i:7", fl="id, day_i", > > >> sort="id asc", qt="/export"), > > >> on="id") > > >> > > >> > > >> Regards, > > >> Edwin > > >> > > > > > > > > >
